Design Of 4 Ghz 1-Bit Phase Quantized Beam Steering Transmitarray

A 4 GHz transmitarray is designed using 1-bit phase quantized U-slot patch element, which need only two switching elements per unitcell to control the transmission phase. The array consists of 22x14 number of 0.24$\lambda _{0}$ size unitcells. Beam scanning from -40° to +40° in the H plane and -20° to +20° is achieved with enhanced gain compared to the feed and SLL is 6 dB below the maximum. Peak gain of 15.3 dBi and SLL of 8.6 dB is observed for broadside radiation. Array is simulated using fullwave solver and radiation pattern results are shown for different scanning angles and frequencies.